It took a while but it was fun to do. I've succesfully managed to convert a Rastan to work as Rainbow Island and it supports ALL versions of Rainbow Island and all versions of Rastan.
I explain in this video what it took me to do it, what I took into consideration, etc. It will be also a good tutorial IMO. I had the unvaluable help from
@Tailsnic Retroworks on this project. Also
@GadgetFreak helped a lot removing the need of the C-Chip in Rainbow Island and master
@l_oliveira helped me fix the last problem I had with sound.
Excuse the bad english and have fun!!!
View: https://youtu.be/apDKPx30Y1I
I will make a small batch of 25 units, first come first served. Price around 150 EUR / $180.
Cheers.